2000 Lexus LS400 warning light

GAUGES, METERS AND SERVICE REMINDER INDICATORS
67
(e) Discharge Warning Light
This light warns that the battery is being discharged.
If it comes on while you are driving, stop the vehicle, turn
off the engine, and check for the cause. Look first at the
engine drive belt.
If it is loose or broken, the generator will not charge
the battery properly.
 If the belt is O.K., there is a problem somewhere in the
charging system.
The engine ignition will continue to operate, however,
until the battery is discharged. Turn off the air
conditioning, blower, radio, etc., and drive directly to the
nearest Lexus dealer or repair shop.
NOTICE
Do not continue driving if the engine drive belt is broken or loose.
(f) Malfunction Indicator Lamp
This lamp comes on in the following cases.
a. The fuel tank is completely empty. (See ºFuel gaugeº
on page 57 for instructions.)
b. The fuel tank cap is not tightened securely. (See
ºFuel tank capº on page 114 for instructions.)
c. There is a problem somewhere in your engine
electrical system, automatic transmission electrical
system or electronic throttle control system.
If it comes on while you are driving in case ªc.º, have your
vehicle checked/repaired by your Lexus dealer as soon
as possible.
If this lamp comes on and the engine speed does not
increase with the accelerator pedal depressed down to
about the middle position, there may be a problem
somewhere in your electronic throttle control system.
At this time, if you depress the accelerator pedal more
firmly and slowly, you can drive your vehicle at low
speeds. Have your Lexus checked by your Lexus dealer
as soon as possible.
Even if the abnormality of the electronic throttle control
system is corrected during low speed driving, the system
may not be recovered until the engine is stopped and the
ignition key is turned to ªACCº or ªLOCKº position.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
68
(g) ºABSº Warning Light
The light comes on with the ignition key turned to ªONº.
If the anti±lock brake system and the brake assist
system work properly, the light goes out after a few
seconds. Thereafter, if either of the systems
malfunctions, the light comes on.
When the ªABSº warning light is on (and the brake
system warning light is off), the anti±lock brake system,
the brake assist system, the traction control system
and/or the vehicle skid control system do/does not
operate, but the brake system still operates
conventionally.
When the ªABSº warning light is on (and the brake
system warning light is off), the anti±lock brake system
does not operate so that the wheels could lock up during
a sudden braking or braking on slippery road surfaces.
If the following conditions occur, this indicates a
malfunction somewhere in the parts monitored by
the warning light system. Contact your Lexus
dealer as soon as possible to service the vehicle.
 The light does not come on with the ignition key
turned to ªONº, or remains on.
 The light comes on while driving.
If the light lit during driving goes out and does not come
on again, it is a normal operation.
(h) Open Door Warning Light
This light remains on until all the doors are completely
closed.
(i) Low Fuel Level Warning Light
This light comes on when the fuel level in the tank
becomes nearly empty. F ill the tank as soon as possible.
On inclines or curves, due to the movement of fuel in the
tank, the low fuel level warning light may come on earlier
than usual.
(j) Key Reminder Buzzer
This buzzer reminds you to remove the key when you
open the driver's door with the ignition key in the ºACCº
or ºLOCKº position.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
69
How to check all the service reminder
indicators
(except the low fuel level warning light):
1. Apply the parking brake.
2. Open the door.
The following service reminder indicator should come
on. It goes off when you close the door completely.
3. Turn the ignition key to ºACCº.
The following service reminder indicator should come
on. It goes off after 6 seconds.
4. Turn the ignition key to ºONº.
The following service reminder indicators should come
on.

or
or

or
The following service reminder indicators go off after 3
seconds.

or
If any service reminder indicator or warning buzzer does
not function, either the bulb is burned out or circuit is in
need of repair. Have it checked by your Lexus dealer as
soon as possible.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
75
(b) Warning messages
13L052

Reminder light
W40W40
When the engine oil pressure becomes too low, the
above message appears, the reminder light flashes
and the warning tone sounds.
If this message appears while you are driving, pull off the
road to a safe place and stop the engine immediately.
Call a Lexus dealer or qualified repair shop for
assistance.
The message may appear when the oil level is extremely
low. It is not designed to indicate low oil level, and the
oil level must be checked using the oil level dipstick.NOTICE
Do not drive the vehicle with the warning messagedisplayed ± even for one block. It may ruin theengine.
W41W41

GAUGES, METERS AND SERVICE REMINDER INDICATORS
76When your brake pads are worn enough to require
replacement, the above message appears, the
reminder
light flashes and the warning tone sounds.
If this message appears while you are driving, have the
brake pads checked and replaced by your Lexus dealer
as soon as possible.
W43W43
W42W42
W45±1
W44W44
W46W46
When any door or trunk is open with the ignition
switch turned on, the message which door or trunk
is open appears, and the reminder light comes on. If you continue driving with any door or trunk open, the
reminder light starts flashing and the warning tone
sounds to remind you to close the door or trunk.
W52W52
If the driver's door is opened with the ignition switch
turned off and the moon roof opened, the above
message appears and the reminder light flashes.
W48W48

GAUGES, METERS AND SERVICE REMINDER INDICATORS
77
In the following cases, the warning message
appears and the reminder light next to the warning
message and the ºVSC OFFº indicator light come
on. And the warning tone also sounds.
(a) After
the removal of the battery terminals (See ºInitial
adjustment of vehicle skid control systemº on page 318.)
(b) If the vehicle skid control system malfunctions
If the message appears, the brake assist system does
not work, however, there is no problem to continue your
driving. If the message appears for the cause of (b),
have your vehicle checked by Lexus dealer as soon as
possible.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
78
W49W49
In the following cases, the above message appears,
the reminder light comes on and the warning tone
sounds.
When the headlight switch is turned to the first or
second clickstop with one or more of tail light bulbs
burned out.
 When the brake pedal is held down with one or more
of stop light bulbs burned out.
Have defective bulbs replaced as soon as possible.
W50W50
When the engine oil level is too low, the above
message appears, the reminder light comes on and
the warning tone sounds.
Add oil as soon as possible. (For instructions, see
ºChecking the engine oil levelº on page 413.)
NOTICE
Continued engine operation with low engine oil will damage the engine.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
79
W51W51
When the fluid level in the tank becomes nearly
empty, the above message appears, the reminder
light comes on and the warning tone sounds.
Fill the tank as soon as possible.
W53W53
When there is a problem somewhere in the
automatic headlight leveling system, the above
message appears, the reminder light comes on and
the warning tone sounds.
If this message appears, have your vehicle checked by
your Lexus dealer.
INSTRUMENT PANEL LIGHTCONTROL
13L005
To adjust the brightness of the instrument panel
lights, turn the knob.